Piston-ring remover.



H. G. HARPER.

PISTON RING EEMOVBR.

APPLIOATIOH FILED APB. 8, 1912.'

Patented Feb. 25, 1913.

To all lwhom if may onoewz, f

lle iL known that l7 lloimon G. linn'nn, :i (citizen ot the UnitedSintes ot Amex-ien, residing :it 'lla-.trein in the county of `lvrsijfneund Stute of ll'litzhignn, halve .inventeii e'"- tain new and usefulimprovements in l" S- toinRing Removers, of ivhiih the tollmving is :ispecification, reference beingr hud therein to the accompanyingdrawings.

This invention relates to :i device for iemoving;q packing rings oi'pifstons from their grooves und its object is to provide u simple toolWhich will operate to lilnily chimp und hold the ends of the ring andspi-end the :mme apart to incl-ense the diameter of the ring so that itmay be readily removed Vli-orn or inserted in its groove.

To this end the invention consists; in the imitters hereinafter' setforth :ind more pei'- ticulzu'ly pointed ont in the claims referencebeingr had to the accompanying chewing, in Whieh- Figure l is nSectional View of i device embodying the invention and showing,- theseme in operative relation .to e piston ring and in position to beoperated to spread the ends of the ring apart.; Fig. 2 is e similar viewshowing the device engaging and holding' the ends of e ring spreadapart; Fig. 3 is. :in enlarged transverse seotion ot' te device on theline lll-lll ot liig. 2; and Fig. fl an edge eiev'ition of the devipiston ring engaged sind held thereby.

In the drawing l represents e section of a portion of a piston of :mycommon eonstinelLion having; e groove 2 to receive a 'peeking ring:which is made in the usual manner with. abutting beveled o1' inclinedends (i.

The device for use in removing` the peeliing ring 3, consiets of it.suitable hollow 3513A- ing 5' having longitudinally extending; Ih'los 6along; each angle of the inneiedge oi: :tace of the easing which i'ibsi:torni between them n. groove 7 extending the length of the -onsing.This groove pieieiz'ibly n very little wider than the Width of thepeeking.: ring i3 tube iei'noved, sind inidivnj/ between the ende oi?the groove e sind i3 immed integeel with the easing: :it the eentei ofthe gi'oiiive, lttjeetnngulaislide i) inovn'hle und guided within theeasingn and this slide is toi-ined with e. Stud l0 which projeetsoutiveid from slide thi'onph :i longitndii'nil w.. l slot il m the i.toni o... room; Y. Il eoilied Sprit. no norinelly holes theSpecification of Letters Patent.

Appleution filed April 191%. Serial No. 889,3215.

engagement with the stud 8 nid e linger grip 'lil on the slide extendsoiitzwziril. through :i slot 14- in the lonely of the c.. eine; so' thatthesilide nifty he moved by the open ntoi' against the notion ot itsspi-ing. 'Upon the end oi the :zx .'ngg opposite that in which the Slot14 is toi'n'ied, is n handle l5 adapted to he graeped hy the hond of theol'iezfiitor when the linger grip 'lf3 is gmsped to move the slide. Asshown in dotted lines in Fig. l, the linger grip 13 muy be inode in theform oi a'. handle similar to the handle l5 instead o in the forni of :iring fingerl grip.

The studs S :ind 10 are ezioh formed semi eiienlnr in eioss'seetion sothat when in Contact with eeeh otheiI they together forni e round sind.,llzich Stud is formed with n nnge or head l() zit its extreme outer endto engege beneath the ends ol' the packing ring und hold said ends; inthe groove 7. When the studs are inse `ted between the inelined ends ofthe ring and the slide moved to spread the ends apart, eneh end of thering by reason of the engagement. of the rounded side of4 the stud 'withthe inclined sniinee the end ofthe ring, will be crowded toward one sideof the groove Z and wedged between the stud and the iange 6. The ends olthe ring;r nre thus locked sind firmly held .in the' gi'oove 7 ot theeasing 'by the studs und the ring muy tilnis be expend ed sind handledby the device in placing it within ite groove in the 'piston or inrcmoving it therefrom.

Obviously. changes in the construction end arrangement of parts univ bemade without. departing from the Spirit of my invention and I do noiwish to limit myself to the peiticnlzir form o1' consti'netion shown.

lfinvingf time tnlly fleseiibed my invention wlnit l ehiim iszmw '1. linn. devieeoi' the ehmnct'ei' described, the eombiimtionot :i memberloiming a guide to i'eii-.eive the ends of e split pecking :mdi'eletzively nnwehle members to we the ends-1 of the ring :and sineadthe the combi-nation of relatively movable members formed to projectbetween the ends 4of a split packing'ring and engage the inner and outersides thereof 'adjacent to said ends, means for engaging the edges ofthe ring to prevent lateral movement of its ends when engaged by saidmembers, and means for actuating said members relatively to Spread theends of the ring apart.

4. In a device of the character described, the combination of a memberhaving a groove to receive the ends of a split packing ring, relativelymovable members to engage between the said ends of the ring and havingportions to engage the inner side of the ring and hold said ends in thegroove, and means foremoving said members relatively to'spread the endsof the ring apart. 5. In a device of the character described, thecombination of a casing having a groove in one edge, a fixed studprojecting from said groove, asecond stud movable along said groovetoward and from the fixed stud, and means for moving the movable studs.6. In a device of the character described, the combination of a casinghaving a groove 1n one-edge, a fixed stud projecting from said groove, aslide guided in said casing, a. stud on said slide projectinginto saidgroove,

andra spring in the casingto move. the slide in one direction.

7. In a device of the character'described, the combination of a hollowcasing Ahaving a groove in one edge and a slot in the bottom of saidgroove, a Xed stud on the casing within the groove at the end of theslot, a'

of the groove, a lixedvstud on the casing in the groove at the end oft-he slot, a slide in the casing, a stud on the slide projecting throughsaid slot, said .studs being each formed semicircular in cross sectionand provided with flanges on their outer ends,

a spring in the casing to move the slide, and

means on the slide for moving the same.

In testimony vvhereof l affix my signa-l ture in presence of tv/owitnesses.

' HORACE G. HARPER.

lfVitnesses:

Omo F. BARTHEL ANNA M. Donn.

